https://bugs.freedesktop.org/show_bug.cgi?id=60802
Alex Deucher agd5f@yahoo.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Summary|(bisect |Corruption with DMA ring on |8696e33f06b0c52195152cc6a0e |cayman |3d52233f486c1) Kernel | |3.8-rc7 breaks rendering on | |Radeon (confirmed on | |Cayman) | Product|DRI |Mesa Component|DRM/Radeon |Drivers/Gallium/r600
--- Comment #5 from Alex Deucher agd5f@yahoo.com --- (In reply to comment #4)
bisected and first bad commit is: 8696e33f06b0c52195152cc6a0e3d52233f486c1 commit 8696e33f06b0c52195152cc6a0e3d52233f486c1 Author: Alex Deucher alexander.deucher@amd.com Date: Thu Dec 13 18:57:07 2012 -0500
drm/radeon: bump version for CS ioctl support for async DMA Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
That just enables the use of DMA by the 3D driver, so the issue is in mesa. This looks like a duplicate of bug 60236.